demo of driving MAX2719 dot matrix displays with STM32F103 Bluepill
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
#include "com/debug.h"
|
|
|
|
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <inttypes.h>
|
|
|
|
|
|
|
|
static void reset_when_done(void)
|
|
|
|
{
|
|
|
|
for (uint32_t i = 0; i < 20000; i++) {
|
|
|
|
if (com_tx_done(debug_iface)) break;
|
|
|
|
}
|
|
|
|
|
|
|
|
NVIC_SystemReset();
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void *malloc_safe_do(size_t size, const char* file, uint32_t line)
|
|
|
|
{
|
|
|
|
void *mem = malloc(size);
|
|
|
|
if (mem == NULL) {
|
|
|
|
// malloc failed
|
|
|
|
error("Malloc failed in file %s on line %"PRIu32, file, line);
|
|
|
|
reset_when_done();
|
|
|
|
}
|
|
|
|
|
|
|
|
return mem;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void *calloc_safe_do(size_t nmemb, size_t size, const char* file, uint32_t line)
|
|
|
|
{
|
|
|
|
void *mem = calloc(nmemb, size);
|
|
|
|
if (mem == NULL) {
|
|
|
|
// malloc failed
|
|
|
|
error("Malloc failed in file %s on line %"PRIu32, file, line);
|
|
|
|
reset_when_done();
|
|
|
|
}
|
|
|
|
|
|
|
|
return mem;
|
|
|
|
}
|